baber/WOPTO huggingface dataset:
Patent GB-1089802-A (GB)
Title: Roof support suitable for use in a mine
Inventor: ANDREWS THOMAS DESMOND HUDSON
IPC: E21D23/04
Filed: 1963-06-21
Abstract: 1,089,802. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. June 12, 1964 [June 21, 1963]. No. 24703/63. Heading E1E. A four-prop mine roof support comprises two U-section floor beams 3 each having a superstructure 4 carrying rubber-lined clamps 9 resiliently supporting two hydraulic props 6 carrying a roof beam 14, the two structures 4 being interconnected by mutually-perpendicular plates 23, 24 which can twist to accommodate floor irregularities. The vertical plate 23 has flanged edges and is secured to upstanding rear plates of the structures 4 by bolts and spacers; the horizontal plate 24 is secured to the structures 4 by individual bolts 28 and is coupled by a bolt 29 to a lug on the plate 23. Each prop 6 stands in a socket on its floor beam 3 and has at its upper end a socket pivotally receiving a spigot on .the underside of the roof beam. As shown the floor and roof beams 3, 14 are hinged to extension beams 17, 21 coupled by props 19. The whole support may be connected by an advancing jack to a conveyor or other anchorage.
Patent GB-1393717-A (GB)
Title: Steering valve
IPC: B62D5/08
Filed: 1972-05-25
Abstract: 1393717 Vehicle power steering V LANGEN [trading as LANGEN & CO] 25 May 1972 [11 June 1971] 24726/72 Heading B7H In a steering valve for power assisted steering systems in which an actuating member 6 is affixed to one part of a divided steering shaft for limited angular deflection in relation to a valve body 1 fixed to the other part of the steering shaft, the actuating member co-operating with pistons 8, 21 slidable in coaxial bores in the valve body which oppose the deflections, each piston having a reaction surface exposed to one of the working chambers in a differential cylinder (not shown), one of the pistons 8 functions as a three-way control valve for control of pressure fluid to the major working chamber of the differential cylinder, the minor working chamber thereof communicating with a pressure source, whereas the other piston 21 functions merely as a reaction piston, and the ratio of effective areas of pistons 8, 21 are equal to the effective piston cross-sections of the differential cylinder. As shown in Fig. 2 the lever arm 6 co-operates with pistons 8, 21 by interposed tappets 7, 20 respectively. In a modification the piston 21 having the greater effective area may function as the control piston. Also annular faces of stepped pistons may be used and bores of the same diameter may be employed with a small auxiliary plunger being arranged to enter the end face of one of the pistons.
Patent GB-243294-A (GB)
Title: Tire band expander
IPC: B60C25/132
Filed: 1925-10-05
Abstract: 243,294. Replogle, M. A. Oct. 5, 1925. Tyres, elastic, tools for removing and replacing. -A device for expanding an elastic tyre 24 for assemblage in the rim 23 comprises means for giving combined radial and axial movement to a series of fingers 19 around which the tyre is first fitted. The lingers 19 are fitted to slotted guides 15 which are connected by links 20 to a spider 12 carried by the piston rod 9 of a power cylinder 2. Bolts 17 on arms 14 fixed to the cylinder head engage slots 16 in the guides 15 and act as stops during the movements of the parts 9, 12, to effect the radial movements of the fingers. In operation, the piston 10 being forced downwards, the fingers are retracted through slots 6 in the table 5 until the bolts 17 engage the upper ends of the slots 16. On the further movement of the piston, the fingers are drawn radially inwards by the links 20. The rim is then assembled and the piston 10 caused to ascend. As the bolts 17 traverse the slots 16, the fingers travel through the slots 6 and after the bolts reach the bottoms of the slots, the further upward movement of the piston results in the fingers being forced radially outwards to expand the tyre, as shown in Fig. 3. On reversal of the movement, the, fingers are retracted to free the tyre which contracts on to the rim, as shown in Fig. 4.
Patent GB-298352-A (GB)
Title: Improvements in the manufacture of cored cartridges for galvanic cells
IPC: H01M4/10
Filed: 1927-09-20
Abstract: 298,352. Kilian, F. Sept. 20, 1927. Moulding electric battery cartridges; rotary-mould-table machines. -In the manufacture of cored cartridges for galvanic batteries a carbon rod k, carried by and protruding from a plunger, is forced into embedding material placed loosely in a matrix, the end of the plunger then serving to compress the material around the inserted rod. Fig. 1 shows a diagrammatic development of a suitable machine of rotary table type. The table t containing the matrices m, the lower ends of which are closed by plungers u, brings each matrix beneath a shoot f, through which it is filled with loose material. An upper plunger o from which projects the core rod k then forces the rod into the material. The lower plunger u contains a yielding rod u<2> which recedes to allow the material in the path of the rod to be forced into the bore c of the plunger u. The plungers o, u are moved towards one another into the matrix to compress the material around the rod as at III. The plunger u is then raised to eject the finished cartridge p as at IV, and finally the rod u<2> is returned to eject the material from the bore c as at V. The movements of the plungers are controlled by rails s, d, v, y, q, q<1>, a grooved roller x being provided at position III to support plunger u and allow downward movement of rod u<2>. The rods k may be inserted from below into spring &c. holders in the plungers o. Alternatively, rods k may be inserted from above in a tubular bore in plunger o, Fig. 2, split at j to grip the lowermost protruding rod with spring pressure. The upper end of the plunger has a sliding or pivoted cap o<4>, Fig. 4, opened by a spring &c. to allow insertion of a rod k and closed by contact with rail d to form an abutment for the topmost rod during the embedding process.
Patent GB-1110385-A (GB)
Title: Polyamide reinforced tires
IPC: B29D30/40
Filed: 1965-06-11
Abstract: In order to reduce flatspotting in a pneumatic tyre of elastomeric material reinforced with polyamide fibres (as described, incorporated as carcass cords).  The fibres have a moisture content of above 3% by weight of the fibres and a relative compliance differential less than 1.7.  The polyamide may be polyhexamethylene or polycaproamide.  The moisture content may be imparted by soaking in water or by mechanical injection of moisture into the tyre, but preferably three nylon 66 yarns each of 140 strands, total denier of 840 and RCD of 0.71 are twisted into cord, dipped in a resorcinol-formaldehyde rubber latex and dried by passing through two drying zones at 300 DEG F and 400-500 DEG F and with a dwell time of 60 seconds and 20-60 seconds respectively.  The cord is stretched 4% in the first and 9% in the second zone.  The cord is then made up into parallel and carcass ply fabric and incorporated into a tyre which is moulded, cured and allowed to cool before treating the rubber of the tyre can be natural, synthetic e.g. butyl, chloroprene, thiskols, buna, and styrenebutadiene rubber, and may contain additives, e.g. carbon black.  The tyre with saturated steam in a closed chamber for 16 hours at 25 p.s.i.g.  It is stated that the fibres do not tend noticeably to dry out after treatment.
Patent GB-912392-A (GB)
Title: Improvements relating to settees convertible into beds
Inventor: JAMES PETER VICTOR
IPC: A47C17/17
Filed: 1960-07-16
Abstract: 912,392. Bed-settees. WEARING Ltd., GEORGE. July 14, 1961 [July 16, 1960], No. 24848/60. Class 52 (2). In a bed-settee one part c of a longitudinal foldable bed is slidable laterally upon a substructure a, a<SP>1</SP> and the complementary part d which forms a back-rest when the apparatus is used as a settee is provided with a readily releasable catch fastening means both with the slidable part c and the substructure a, a<SP>1</SP> to secure the apparatus as a settee and also to permit, when the catch fastening means are released, of the back-rest d being brought into slidable alignment with the part c so that both sections can be slid to form a central bed on a substructure a, a<SP>1</SP> of lesser width. Angle plates c<SP>3</SP> having slots c<SP>4</SP>, c<SP>5</SP> are attached to the slidable section c and studs d<SP>1</SP> co-operate therewith by pivotal and sliding movements so that the part d may be located in either an aligned or upright position. A stud c<SP>6</SP> on the part c engages a slot d<SP>2</SP> in the part d. When the backrest d is moved to the upright position it can be dropped by virtue of the slots c<SP>5</SP>, d<SP>2</SP> and an extension d<SP>3</SP> of the back-rest d engages a socket a<SP>2</SP> in the substructure a, a<SP>1</SP>. By removing pins c<SP>6</SP> the back-rest d may be folded down on to the seat part c.
Patent GB-1501473-A (GB)
Title: Fans
IPC: F24F3/14
Filed: 1975-06-10
Abstract: 1501473 Centrifugal fans CHARBONNAGES DE FRANCE 10 June 1975 [11 June 1974 15 May 1975] 24854/75 Heading F1C [Also in Division B1 ] A centrifugal fan comprises a cylindrical rotor 1, Fig. 1, of air-permeable material, e.g., open-pore plastics foam material, rotating within a cylindrical bowl 5 which is coaxial with the rotor shaft, and an annular nozzle 13 mounted on the bowl in front of the rotor to define concentric inlet and outlet apertures 11, 12. Vortical motion is induced in the inlet and outlet flows, and in the case of the outlet flow this motion may be increased by means of guide blades 14 which are inclined towards the fan periphery in the direction of rotor rotation. The inlet aperture 11 may be provided with guide blades for directing streams of air so as to reduce turbulence. The material of the rotor 1 acts as a filter to remove dust from the air. The rotor is quieter than a bladed rotor. A nozzle 15 may be provided for spraying washing water towards the rotor, mud or other matter flung off the rotor being discharged via at least one pipe 17 which may be disposed tangentially or axially. The foam material may be in two layers, as shown in Fig. 5, the layer 25 being of coarser foam than the layer 24 and of annular form so that the washing water collecting in the hollow interior 23 penetrates centrifugally into the foam. If it is desired that the water passes through the layer 24, it may be provided with a depression as indicated in dot-anddash lines. The layer 25 may have a conical or other taper 22 so that the deformation occurring during rotation restores it to cylindrical profile. If  the foam material is in a single layer, the hollow 23, when provided, is of conical form.
Patent GB-1124433-A (GB)
Title: Method of rendering polyester materials resistant to attack by ultraviolet light
IPC: D06M13/355
Filed: 1967-05-30
Abstract: Textile material made from polyesters formed by the reaction of a polybasic acid and a polyhydric alcohol is rendered resistant to attack by ultraviolet light by immersing it in a heated bath containing an ultra violet light absorber and a liquid carrier which acts as a catalyst so that the ultraviolet light absorber reacts chemically with the polyester material, removing the material from the bath and heating the material to a temperature in excess of the flash point of the carrier liquid to remove any carrier liquid remaining on the material.  The ultraviolet light absorber may be a mono-ortho-hydroxybenzophenone or orthohydroxyphenyl-benzotriazole, benzotriazole or phenyl alpha methyl styryl ketone and the carrier may be ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, butylene glycol, glycerol, a glycol ether or a polyglycol.  The bath is preferably heated to at least 250 DEG F and the polyester material may be immersed in the bath for 2-30 seconds. The carrier liquid may subsequently be removed by heating the material to a temperature in excess of the flash point of the carrier liquid by passing the material through a hot air stream.  The textile material may be in the form of a filament, yarn, tow or woven or knitted fabric, and may be used in the production of sails, tents, awnings, articles of clothing or rugs.
Patent GB-430129-A (GB)
Title: Improvements in and relating to cooling devices for vacuum electric discharge vessels
IPC: H01J7/24
Filed: 1934-08-29
Abstract: 430,129. Discharge apparatus. LEHMANN, W., 52, Westfalische Strasse, Halensee, Berlin. Aug. 29, 1934, No. 24877. Convention date, Sept. 19, 1933. [Class 39 (i)] [See also Groups XIII and III] The liquid used in the evaporator-condenser cooling systems of vacuum electric discharge apparatus, e.g. mercury vapour rectifiers, is degassed, preferably prior to its introduction into the system, either by boiling under reduced pressure or by running over inclined surfaces in an evacuated chamber, the mixed vapour and gases being in either case withdrawn through a condenser. Alternatively, the degassing may be effected by frothing by directing a jet of insoluble gas into the liquid or by centrifuging the liquid. It is preferred to use liquids containing no or only a few hydrogen ions such as benzol, toluol, acetone, carbon disulphide or aniline. To promote vaporization of the degassed liquid a small quantity of gas may be mixed therewith. Thus, e.g. helium may be mixed with benzol. Further, porous granular material such as alumina, coke, chalk may be added to the degassed liquid for the same purpose. Vaporization of the degassed liquid may be initiated by electric heating elements. The liquid may be degassed after introduction into the cooling system by connecting the condenser of the system to an air-pump during the normal operation of the electric apparatus, a condenser or an absorption vessel packed with silica gel or active carbon being interposed between the condenser and the pump. Further, the parts of the cooling system may be degassed by evacuation. Fig. 1 shows a mercury vapour rectifier having compartments 7, 9 containing the cooling liquid and connected to condensers 13, 14 disposed in an air shaft. The compartments may be evacuated and charged with cooling liquid through connections 10, which are afterwards sealed, and provided with electric heaters 18, 20 to promote vaporization. In a modification, flanged rings 21, Fig. 4, are provided on the heater sheath 17 to collect bubbles of residual gas and vapour and so prevent such gas and vapour from passing over the surface of the sheath and retarding vaporization of the liquid. Similar rings may be placed on the anode tube 5 of the rectifier and on the central chamber 6.
Patent GB-463175-A (GB)
Title: Improvements in and relating to containers for dental amalgams
IPC: A61C5/66
Filed: 1936-09-12
Abstract: 463,175. Dental amalgam containers. DOLL, P. J. Sept..12, 1936, No. 24915. Convention date, Sept. 23, 1935. [Classes 81 (i) and 81 (ii)] A device for storing and mixing dental amalgams comprises a rubber bag 1 in the neck of which is fitted a glass cylinder 5 having end packings 9 and 7, the latter being mounted on the end of a piston 6. The filings and mercury are stored in the bag and cylinder respectively. When an amalgam is to be made, the piston is moved to remove the packing 7 and the amalgam is made by kneading the bag. The packings 7 are preferably of paraffined cork.
Patent GB-1069004-A (GB)
Title: Improved dispenser tap
Inventor: DALE WALTER FRANCIS
IPC: F16K21/00
Filed: 1964-06-16
Abstract: 1,069,004. Valves. ANDALE REPETITION ENGINEERING PROPRIETARY Ltd. June 16, 1964, No. 24938/64. Heading F2V. A dispensing tap for beer, tea and coffee which is readily dismantled for cleaning purposes is assembled from parts 8, 9, upon locating tongues and grooves (11, 10) (Figs. 5 and 6, not shown), which are e clamped together by a ring nut 16, an internal flange whereof abuts against flange 12 on part 9 through neoprene 0- ring 13 contained in an adjacent circumferential groove 14. The outlet 17 is obtained by a resilient sealing member 24 upon a stem 19 which is urged to the closed position by a helical spring (not shown) mounted within sleeve 20 and which is raised by the engagement of cam 26 with pins 27 carried by a rotatable thimble 28 connected to the upper end of stem 19 by lock nuts. The centre points of the tongues and grooves (11, 10) do not lie on a diameter of the body 7 so that the separable body portions 8, 9 only fit together in one rotational alignment position.
Patent GB-407032-A (GB)
Title: Improvements in or relating to gas illuminated traffic control signals
IPC: G08G1/095
Filed: 1932-09-08
Abstract: 407,032. Road signals for controlling traffic. HORSTMANN, J. H. G., 33, Shakespeare Avenue, HORSTMANN, F. O., 92, Newbridge Road, both in Bath, MATTOCK, W. G. H., Ranelagh Works, Chapter Street, Vauxhall Bridge Road, and CHANDLER, D., 709, Old Kent Road, Peckham, both in London. Sept. 8, 1932, No. 25081. [Class 118 (ii).] A gas illuminated traffic control system is electrically operated under the control of a contact drum which is stepped round by a pawl and ratchet mechanism operated by an electrically maintained pendulum. The gas flow to the signal lamps is either turned down or is turned completely off depending on whether a continuously lit bye-pass flow is or is not provided. As shewn in the figures the drum which carries contact arms making contact with spring contacts 24, is driven round step by step by the pendulum 1, the weights 3 of which are adjustable to vary the time of the cycle. As the various contact members 24 come in action circuits are completed for solenoids 37, 38 controlling the gas flow devices feeding the burners behind the red amber and green glasses 31, 32 and 33, the contacts on the drum being spaced to give the usual cycle of red, red-amber, green, amber and red. Contacts are arranged on the solenoid cores to break the solenoid circuits when the cores are completely operated. Instead of the system described, the gas valves can be operated by a cam shaft directly or through levers, the cam shaft being rotated by impulses from the master control.
Patent GB-956689-A (GB)
Title: Process for the continuous manufacture of curd
IPC: A61K35/38
Filed: 1961-07-11
Abstract: 956,689. Cheese manufacture; making and cutting curd. NEDERLANDS INSTITUUT VOOR ZUIVELONDERZOEK. July 11, 1961 [July 11, 1960], No. 25089/61. Heading A2B. In the manufacture of curd for making cheese a mixture of milk and ingredients required for the production of cheese, e.g. rennet, starter, calcium chloride, saltpetre, colouring, are cooled to and held at a temperature between -1‹C. and +15‹C. in a tank for between 1¢ and 48 hours and then pumped through a heat exchanger, e.g. of plate or tubular type, and heated to a temperature between 20 and 45 ‹C. The mixture then passes into a coagulating chamber having two, preferably horizontal, perforated discs above the inlet with the perforations in staggered relationship to prevent turbulence and proceeds up the chamber to a curd cutting apparatus, Fig. 3. associated with its outlet. As shown, the coagulating chamber comprises concentric cylinders 1, 2 and a knife having a cutting edge 4 and vertical blades 5 is rotated in the annular space between the cylinders. The knife is sector-shaped and the edge 4 is upwardly inclined from B to A, whilst the circular edge BC is inclined upwards in a helix, the arrangement, construction and operation, i.e. speed of rotation, angles of inclination &c., being such that the strips formed by the knives 5 and edge 4 are cut by vertical blades 6 on the outer edge of the cylinder into pieces of curd all of equal volume. Alternative forms of apparatus are described in which the curd is removed from the coagulation chamber either inwardly, i.e. in a direction towards the inner cylinder (Fig. 6, not shown) or alternatively both inwardly and outwardly.
Patent GB-617226-A (GB)
Title: Transmission gear for machine tools
IPC: F16H9/06
Filed: 1946-08-22
Abstract: 617,226. Tensioning driving belts. BECHLER, A. Aug. 22, 1946, No. 25114. Convention date, May 3. [Class 80 (i)] In variable speed belt gearing in which a countershaft 11 carrying a stepped cone pulley 12 is interposed between the driving and driven shafts 9, 6, the bearings of the countershaft are formed integral with a frame 14 having a longitudinal slot 20 crossed by a slot 22 in the fixed machine-frame, both the slots being traversed by a fixed pin 21, provided with a lock-nut, release of which permits the countershaft frame to be both oscillated and translated to tension both belts. The countershaft frame 14 may, as shown, swing on parallel links 16 or on a fixed pin engaging a slot in the frame 14.
Patent GB-1001650-A (GB)
Title: Improvements in ply-turning apparatus for the manufacture of pneumatic tyres
IPC: B29D30/26
Filed: 1962-07-02
Abstract: 1,001,650. Manufacturing tyres. DUNLOP RUBBER CO. Ltd. July 2, 1962 [July 4, 1961], No. 25215/62. Heading B7C. Apparatus for turning radially inwards the ends of tyre ply material 33 carried on a tyre building former (Fig. 3) comprises a rigid annular support 8, enclosing an inflatable annular bag 1, the bag having axial reinforcement 7 and being secured by at least two portions 2, 3 to the support 8 and to axially movable, mounting means 15, the apparatus being located coaxially with the former 24. The bag 1 is circumferentially stretched when beads 2, 3 are fitted to members 8, 15, and reinforcement 7 prevents the bag being axially stretched. Fig. 3 shows the bag deflated by applying a vacuum, when springs 21 move means 15 away from support 8, and the apparatus is positioned around ply 33 on the former. The bag is then inflated and since portion 6 is axially inextensible, draws means 15 towards support 8 as the bag presses the ends of the ply radially inwards (Fig. 4, not shown). Finally, a ring 36 is advanced leftwards, pressing the bag and ply further. Fig. 5 (not shown) illustrates apparatus in which the spring 21 is replaced by a pneumatic cylinder. Fig. 9 shows a bag 60 adapted to press two ends of a ply 46 about a central former 44, two means 15 and rings 36 (not shown) being employed. Fig. 10 (not shown) illustrates use of that apparatus in applying a tread layer to a carcass mounted on an inflated diaphragm.
Patent GB-151829-A (GB)
Title: Improvements in machines for moulding chocolate and similar products
IPC: A23G1/24
Filed: 1919-10-15
Abstract: 151,829. Levy, L. R. Oct. 15, 1919. Shaking and jigging machines.-In a machine for settling chocolate or similar products in moulds, the table has imparted to it a more violent shock followed by a series of lesser ones. The table 21, Fig. 2, is supported by a vertical sliding spindle 9 the foot 10 of which rests on a cam 7 rotated by a spindle 4. The cam 7, Fig. 3, has ratchet teeth, one 8 of which protrudes further than the others. The violence of the shocks is adjusted by a bush 15 carrying pads 16. tThe bush is raised' by turning the sleeve 13, which is clamped in position by a screw 18. Two toothed cams. can be used, one with small teeth and the other with a large tooth.
Patent GB-150720-A (GB)
Title: Improvements in or relating to lifting jacks
IPC: B66F1/00
Filed: 1920-09-02
Abstract: 150,720. Lane Bros. Co., (Assignees of Lane, G.). May 8, 1914, [Convention date]. Jacks.-In a ratchet jack, the pawls 5, 4 are connected by helical springs 13, 14 to bellcrank levers 11, 12 mounted on the casing 8 and connected by a spring C. A thin but relatively wide member 15 is rotatably mounted on the actuating-lever 6 and is held by a spring 17 in the position shown when the jack is used for lowering, or with the member 15 in an horizontal plane when raising a load. In this latter position the member 15 does not come into contact with the levers 11 ,12. An arm 16 is provided for rotating the member 15, and finger pieces 11<x>, 12<x> are formed on the ends of the levers 11, 12 to facilitate rocking the levers to withdraw both pawls when it is desired to lower the lifting pillar 3 rapidly. The standard 2 comprises channelirons 2a, 2<b>, Fig. 5, riveted together.